Imaging device and camera grip, and imaging system

ABSTRACT

A mount section 35 on which a camera grip 60 is mounted in an attachable and detachable manner is provided in an imaging device 30, and a mount section 65 that is mounted on the imaging device 30 in an attachable and detachable manner is provided in the camera grip. The attachment and detachment of the camera grip 60 can be easily performed and manipulability can be improved by providing the mount sections 35 and 65 provided in the imaging device and the camera grip with a bayonet mechanism. Further, a connection cable 75 that connects the imaging device 30 and the camera grip 60 is wound or rewound around the mount section 65 in accordance with the rotational movement of a grip main body section 61 with the mount section 65 as the axis, and the connection cable 75 does not become an obstacle to the switch manipulation of a manipulation section 62 provided in the camera grip 60. The manipulability of an imaging system can be improved.

TECHNICAL FIELD

This technology relates to an imaging device and a camera grip, and animaging system, and enables an improvement in manipulability.

BACKGROUND ART

An imaging device has conventionally been provided with a camera gripthat a user grasps at the time of imaging. For example, in PatentLiterature 1, a mount section is provided in an imaging device and acamera grip, a male screw section is formed in the mount section of theimaging device and a female screw section is formed in the mount sectionof the camera grip, and the male screw section and the female screwsection are screwed together; thereby, the camera grip is attached tothe imaging device. Further, a pin jack is provided at the center of themount section of the imaging device, and a pin plug for electricalcommunication is provided at the center of the camera grip; if the malescrew section and the female screw section are screwed together, a statewhere the pin plug for electrical communication is inserted in the pinjack is created. Thus, the imaging device and the camera grip can beelectrically connected by attaching the camera grip to the imagingdevice.

CITATION LIST Patent Literature

Patent Literature 1: JP 2013-092678A

DISCLOSURE OF INVENTION Technical Problem

Incidentally, in a configuration in which a male screw section is formedin one of an imaging device and a camera grip and a female screw sectionis formed in the other, the manipulation of screwing the male screwsection and the female screw section together is needed in a case wherethe imaging device and the camera grip are linked. Therefore, theattachment and detachment of the camera grip to the imaging devicecannot be performed quickly and easily. Further, a pin plug and a pinjack are provided at the centers of the mount sections; hence, in orderto use the pin jack provided in the imaging device for another accessoryor the like, it is necessary to detach the camera grip from the imagingdevice, and manipulability is worsened.

Thus, an object of this technology is to provide an imaging device and acamera grip, and an imaging system that can improve manipulability.

Solution to Problem

A first aspect of the present technology provides an imaging device,including a mount section configured to mount a camera grip in anattachable and detachable manner on a device main body, in which themount section has a bayonet mechanism.

In this technology, a mount section using a bayonet mechanism isprovided in the device main body of the imaging device, and the cameragrip is mounted on the mount section in an attachable and detachablemanner. Further, the cable direction in the device main body of aconnection cable that connects the device main body and the camera gripis set to a tangential direction to the mount section. For example, ajack for connecting a connection cable is provided on a surface of thedevice main body on which the mount section is provided, and theinsertion and removal direction of a plug to the jack is set such thatthe cable direction of the connection cable equipped with the plug isthe direction of an upper tangent line to the mount section. Further, achrysanthemum-shaped metal fixture is provided in the interior of themount section and a threaded hole that fixes an accessory is provided atthe center of the chrysanthemum-shaped metal fixture so that anotheraccessory can be connected in place of the camera grip.

A second aspect of the present technology provides a camera grip,including a mount section for mounting a grip main body section on animaging device in an attachable and detachable manner, the mount sectionbeing provided to protrude from the grip main body section, in which themount section has a bayonet mechanism.

In this technology, a mount section using a bayonet mechanism isprovided in the grip main body section of the camera grip so as toprotrude from the grip main body section, and the imaging device ismounted on the mount section in an attachable and detachable manner.Further, the grip main body section is rotationally movable with themount section as the axis. Furthermore, a cable guide section thatregulates the position of a connection cable that connects the grip mainbody section and the imaging device to a direction winding around themount section is provided in the camera grip. For example, as the cableguide section, a cable guide protrusion section that is formed in aposition distant a prescribed spacing from the edge of the mount sectionprovided to protrude in a circular cylindrical shape from the grip mainbody section and that is formed in the circumferential direction of themount section so as to protrude in the protrusion direction of the mountsection, or a cable guide trench section formed in the circumferentialdirection of the mount section so as to have, as the trench width, thelength from the edge of the mount section to a position distant aprescribed spacing is provided.

A third aspect of the present technology provides an imaging systemincluding: an imaging device; and a camera grip, in which a mountsection which mounts the camera grip in an attachable and detachablemanner is provided in the imaging device, a mount section which mountsthe imaging device in an attachable and detachable manner is provided inthe camera grip, and the mount section provided in the imaging deviceand the mount section provided in the camera grip each have a bayonetmechanism.

In the imaging system of this technology, the imaging device and thecamera grip are mounted in an attachable and detachable manner using abayonet mechanism. Further, a grip main body section of the camera gripis rotationally movable with the mount section as the axis. In theimaging device, the cable direction of a connection cable that connectsthe imaging device and the camera grip is set to a tangential directionto the mount section. Further, a cable guide section that regulates theposition of the connection cable to a direction winding around the mountsection is provided in the camera grip. Here, in a state where thecamera grip is mounted on the imaging device, the cable direction in theimaging device is set to a cable direction regulated by the cable guidesection of the camera grip, and the connection cable is wound or rewindaround the mount section in accordance with the rotational movement ofthe grip main body section.

Advantageous Effects of Invention

According to this technology, a mount section on which a camera grip ismounted in an attachable and detachable manner is provided in a devicemain body of an imaging device, and the mount section has a bayonetmechanism. Therefore, the attachment and detachment of the imagingdevice and the camera grip becomes easier and manipulability can beimproved. Note that the effects described in the present specificationare only examples and are not limitative ones, and further there may beadditive effects.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a right side view of an imaging system.

FIG. 2 is a front view of the imaging system.

FIG. 3 is a back view of the imaging system.

FIG. 4 is a plan view of the imaging system.

FIG. 5 is a diagram illustrating functional blocks of an imaging system.

FIG. 6 is a diagram illustrating a mount section of an imaging device.

FIG. 7 is a diagram illustrating a mount section of a camera grip.

FIG. 8 is a diagram illustrating a disassembled perspective view ofconstituent elements including mount sections of an imaging device and acamera grip.

FIG. 9 is a diagram illustrating a cable arrangement in an imagingdevice.

FIG. 10 is a diagram illustrating a cable arrangement in a camera grip.

FIG. 11 is a diagram illustrating cases where the positionalrelationship between an imaging device and a camera grip is changed.

FIG. 12 is a diagram for describing a chrysanthemum-shaped metalfixture.

FIG. 13 is a diagram illustrating another configuration of the mountsection of the imaging device.

MODE(S) FOR CARRYING OUT THE INVENTION

Hereinbelow, embodiments for implementing the present technology aredescribed. Note that the description is given in the following order.

1. Overall configuration of imaging system

1-1. External configuration of imaging system

1-2. Functional configuration of imaging system

2. Configuration of mechanical connection between imaging device andcamera grip

3. Configuration of electrical connection between imaging device andcamera grip

4. Another configuration of mount section of imaging device

<1. Overall Configuration of Imaging System>

[1-1. External Configuration of Imaging System]

FIG. 1 to FIG. 4 illustrate external appearances of an imaging system ofthe present technology. Note that FIG. 1 is a right side view of theimaging system. FIG. 2 is a front view of the imaging system. FIG. 3 isa back view of the imaging system. FIG. 4 is a plan view of the imagingsystem.

An imaging system 10 includes a lens unit 20, an imaging device 30, anda camera grip 60. The camera grip 60 is provided in an attachable anddetachable manner to the imaging device 30, and may be providedseparately from the imaging device 30.

The lens unit 20 is attached to the front surface of the imaging device30. The lens unit 20 includes an imaging lens that condenses light froma subject, a zoom mechanism that allows the optical magnification of theimaging lens to change in a prescribed range, etc.

A handle section 331 is formed on the upper surface of the imagingdevice 30. The handle section 331 is provided such that, when a usercarries the imaging system 10 around or uses the imaging system 10 in alow position, the user can grip the handle section 331 with a hand tohold the imaging system 10. A microphone attachment section 332 isprovided on the right side surface on the front end side of the handlesection 331. A viewfinder section 34 is provided on the rear side of theupper surface of the imaging device 30. The viewfinder section 34displays a camera-through image, an image recorded on a recordingmedium, a menu image, various pieces of information, etc.

A battery 80 that supplies electric power necessary to cause the imagingsystem 10 to operate is mounted on the rear surface of the imagingdevice 30. Further, a manipulation section 32 including variousmanipulation switches is provided on the upper surface, the left sidesurface, and the back surface of the imaging device 30.

A mount section 35 for attaching the camera grip 60 in an attachable anddetachable manner is provided on the right side surface of the imagingdevice 30. Further, a jack that attaches a connection cable forelectrically connecting the imaging device 30 and the camera grip 60 isprovided in the vicinity of the mount section 35. Note that details ofthe mount section and the connection cable are described later.

The camera grip 60 includes a grip main body section 61 and a mountsection 65. The grip main body section 61 is a portion that the usergrasps, and is in a shape that can be easily grasped by the user's hand.In the grip main body section 61, a manipulation section 62 is providedin a position where it can be manipulated in a state where the usergrasps the grip main body section 61. A zoom switch 621 that adjusts thefocal distance and a REC button 622 that gives an instruction to startor end recording are provided in the manipulation section 62.Furthermore, as well as switches of which the function is fixed,assignable buttons 623 and 624 of which the function can be changed anda setting button 625 for assigning functions to assignable buttons andchanging functions assigned to assignable buttons are provided in themanipulation section 62. Further, a jog dial 626 or the like forselecting functions etc. is provided in the manipulation section 62.Further, a lock release button 627 capable of adjusting the position ofthe grip main body section 61 with respect to the mount section 65 isprovided in the grip main body section 61. Here, if the user performslock release manipulation with the lock release button 627, the gripmain body section 61 becomes rotationally movable in the direction ofarrow MA with the mount section 65 as the axis; if lock releasemanipulation is then ended, the position of the grip main body section61 is fixed at the rotational movement position at the time of the end.Therefore, if the lock release button 627 is manipulated in a statewhere the camera grip 60 is mounted on the imaging device 30, theposition of the grip main body section 61 can be adjusted to a desireddirection with respect to the imaging device 30.

Further, the grip main body section 61 is provided with a connectioncable 75 for electrically connecting the grip main body section 61 tothe imaging device 30. A plug is provided at the tip of the connectioncable 75.

[1-2. Functional Configuration of Imaging System]

FIG. 5 is a diagram illustrating functional blocks of an imaging system.The imaging device 30 includes an imaging section 301, a video signalprocessing section 302, an audio signal processing section 303, arecording and reproducing section 304, a lens driving section 305, acontrol section 310, a power source section 315, the manipulationsection 32, the battery 80, a recording medium 86, etc. Further, thecamera grip 60 includes the manipulation section 62, as described above.

The imaging section 301 includes, for example, an imaging element suchas a complementary metal oxide semiconductor device (CMOS) or acharge-coupled device (CCD). The imaging section 301 photoelectricallyconverts an optical image that is formed on an imaging surface by thelens unit 20 and generates an imaging signal, and outputs the imagingsignal to the video signal processing section 302.

The video signal processing section 302 performs, on an imaging signal,denoising processing, gain adjustment processing, and the processing ofadjusting luminance and color. Further, the video signal processingsection 302 performs processing that converts a video signal afteradjustment processing and a video signal read by the recording andreproducing section 304 to a video signal corresponding to the number ofpixels of the viewfinder section 34 and processing that superimposes adisplay signal of a menu display or the like on a video signal. Further,in order to obtain a desired captured image easily, the video signalprocessing section 302 may perform video image processing on aviewfinder image, such as enlarging and displaying a central portion.The video signal processing section 302 outputs a video signal afterprocessing to the viewfinder section 34. The audio signal processingsection 303 performs the processing of amplifying an audio signalgenerated by a microphone, etc., and outputs the amplified audio signalto the recording and reproducing section 304.

The recording and reproducing section 304 performs, on the basis of aninstruction from the control section 310, the processing of recording aninformation signal such as a video signal or an audio signal on therecording medium 86 and the processing of reading and reproducing aninformation signal recorded on the recording medium 86. Further, therecording and reproducing section 304 performs the processing ofsupplying a video signal read from the recording medium 86 to theviewfinder section 34 via the video signal processing section 302, orthe like. Furthermore, the recording and reproducing section 304performs the processing of outputting an information signal in aprescribed format to an external device, or the like. Note that therecording medium 86 may be an attachable and detachable recordingmedium, or may be a recording medium fixedly provided in the interior ofthe imaging device 30.

The lens driving section 305 drives the lens unit 20 and sets the lensunit 20 to a desired zoom magnification on the basis of an instructionfrom the control section 310. Further, the lens driving section 305 mayperform focus adjustment so that an optical image bonded to the imagingsurface of the imaging element in the imaging section 301 is a clearimage.

The manipulation section 32 includes manipulation switches provided onthe side surface, the back surface, and the upper surface of the imagingdevice 30. The manipulation section 32 generates a manipulation signalin accordance with the user's switch manipulation, and outputs themanipulation signal to the control section 310. The manipulation section62 includes manipulation switches provided in the grip main body section61 of the camera grip 60. The manipulation section 62 is electricallyconnected to the imaging device 30 via the connection cable 75. Themanipulation section 62 generates a manipulation signal in accordancewith the user's switch manipulation, and outputs the manipulation signalto the control section 310.

The control section 310 includes, for example, a central processing unit(CPU), an electrically erasable programmable ROM (EEPROM), a read-onlymemory (ROM), a random access memory (RAM), etc., which are notillustrated. A program for executing various pieces of controlprocessing in the control section 310 is stored in the ROM in thecontrol section 310. The CPU operates on the basis of the program, andexecutes calculation and control processing necessary for each piece ofcontrol while using the RAM. The program is not limited to a case ofbeing stored in a ROM incorporated in the imaging device 30 in advance;and may be stored in a removable recording medium and provided to theimaging device 30, or may be downloaded on the imaging device 30 via anetwork such as a LAN or the Internet.

The control section 310 controls each section on the basis of usermanipulation or the like on the manipulation sections 32 and 62 so thatan operation in accordance with the user manipulation is performed inthe imaging system 10. The control section 310 turns on and off thepower source of the imaging system 10 on the basis of, for example, usermanipulation on a power supply switch. Further, the control section 310controls the lens driving section 305 on the basis of user manipulationon a zoom switch, and causes the focal distance of the lens unit 20 tochange in accordance with the user manipulation. Further, the controlsection 310 causes the recording of an information signal to be startedor stopped on the basis of user manipulation on a REC button.

Further, the control section 310 performs the control of executing afunction assigned to a manipulated assignable button on the basis ofuser manipulation on the assignable button. Furthermore, the controlsection 310 assigns a function to an assignable button on the basis ofuser manipulation on a setting button. Note that, for example, afunction of displaying various markers, a rec review function, afunction of switching the mode of the viewfinder section, a viewfinderimage switching function for facilitating focus adjustment, a functionof displaying information regarding luminance, etc. are assignable toassignable buttons.

The power source section 315 supplies electric power from the battery 80mounted on the imaging device 30 to each section of the imaging system10.

<2. Configuration of Mechanical Connection Between Imaging Device andCamera Grip>

A mount section that connects the imaging device 30 and the camera grip60 is provided in the imaging device 30 and the camera grip 60, and themount section has a bayonet mechanism. FIG. 6 illustrates a mountsection of an imaging device, and FIG. 7 illustrates a mount section ofa camera grip. Further, FIG. 8 illustrates a disassembled perspectiveview of constituent elements configuring mount sections of an imagingdevice and a camera grip.

In the mount section 35 of the imaging device 30, a mount base section352 in a ring shape is fitted to a circular concave section 351 formedon the right side surface. Bayonet tabs 352 a are protrusively formed onthe inner peripheral surface of the mount base section 352. Further, aleaf spring section 353 formed in a ring shape is provided between thebottom surface of the circular concave section 351 and the mount basesection 352. On the inner peripheral side of the leaf spring section353, elastic pieces 353 a protruding toward the mount base section 352are provided in positions facing the bayonet tabs 352 a. The elasticpieces 353 a bias bayonet tabs 652 a of the mount section 65 insertedbetween the elastic pieces 353 a and the bayonet tabs 352 a so as topress the bayonet tabs 652 a against the bayonet tabs 352 a. Anappearance ring 354 is provided on the outside surface of the mount basesection 352 (the front surface of the circular concave section 351) inorder to make the appearance of the mount section 35 better.Furthermore, threaded holes 352 b, 353 b, and 354 b for stacking themount base section 352, the leaf spring section 353, and the appearancering 354 and fixing the mount base section 352, the leaf spring section353, and the appearance ring 354 to the circular concave section 351with a screw are provided in the mount base section 352, the leaf springsection 353, and the appearance ring 354, respectively.

The mount section 65 is provided on a facing surface 61 a of the gripmain body section 61 facing the imaging device 30. The mount section 65includes a mount base section 651 in a circular cylindrical shape thatprotrudes from the facing surface 61 a toward the imaging device and amount main body section 652 in a circular cylindrical shape that isprovided on the tip side of the mount base section 651. The bayonet tabs652 a are protrusively formed on the outer peripheral surface of a tipportion of the mount main body section 652. Note that the number ofbayonet tabs in the mount sections 35 and 65 is not limited to three,and less than three or more than three bayonet tabs may be provided.

Further, in the mount section 35, a lock mechanism (not illustrated) isprovided to regulate the rotation of the mount section 65 of the cameragrip 60 with respect to the mount section 35 of the imaging device 30when the camera grip 60 is mounted on the imaging device 30. Therefore,rotation of the mount section 65 relative to the mount section 35 duringthe manipulation of the camera grip 60 and falling off or the like ofthe camera grip 60 from the imaging device 30 can be prevented. As thelock mechanism, for example, a lock pin may be provided in the mountsection 35, and an engagement hole may be provided in the mount mainbody section 652.

In a case where the camera grip 60 is mounted on the imaging device 30,the user sets the position of the bayonet tab 652 a of the mount section65 in the camera grip 60 between bayonet tabs 352 a of the mount section35 in the imaging device 30. Furthermore, in the state where theposition is set, the user inserts the mount main body section 652 of thecamera grip 60 into the circular concave section 351 of the imagingdevice 30. After that, the user rotates the mount main body section 652of which the bayonet tabs 652 a are inserted in prescribed positionsthat are positions on the deeper side than the bayonet tabs 352 a, withthe insertion direction as the rotation axis. In this event, the bayonettab 652 a is in a state of being engaged with (a state of overlappingwith) the bayonet tab 352 a, and a state where the mount section 35 andthe mount section 65 are linked is created. That is, a state where thecamera grip 60 is fixed to the imaging device 30 is created.Furthermore, the configuration is made such that, if the mount section65 is rotated up to a prescribed position whereby the bayonet tab 652 aand the bayonet tab 352 a are engaged, the lock pin of the mount section35 is inserted into the engagement hole of the mount main body section652. By thus providing a lock mechanism, the mount section 65 of thecamera grip 60 can be fixed to the mount section 35. Further, if themanipulation of pulling out the lock pin from the engagement hole isperformed, the mount section 65 can be rotationally moved relative tothe mount section 35, and the camera grip can be detached from theimaging device 30.

Thus, the attachment and detachment of the imaging device 30 and thecamera grip 60 can be performed quickly and easily with the mountsection having a bayonet structure. Further, by providing a lockmechanism in the above manner, the linkage state of the mount section 35and the mount section 65 is maintained until lock release manipulation,such as user manipulation that releases the engagement state of the lockpin and the engagement hole, is performed. Therefore, the falling offand the like of the camera grip 60 from the imaging device 30 can beprevented with reliability.

Furthermore, since the elastic piece 353 a of the leaf spring section353 is biased so as to press the bayonet tab 652 a against the bayonettab 352 a, the mount section 35 can hold the mount section 65 withoutcausing unsteadiness or the like in a state where the bayonet tab 652 aand the bayonet tab 352 a are engaged.

Note that the mount sections 35 and 65 are not limited to a bayonetstructure in which a bayonet tab is formed in each of the mount sections35 and 65, and the mount section 35 and the mount section 65 are linkedin a state where both bayonet tabs are engaged (overlap). For example, abayonet structure in which a bayonet tab is formed in one mount sectionand an engagement section overlapping with the bayonet tab is providedin another mount section, and thereby the mount sections can be linkedmay be used.

<3. Configuration of Electrical Connection Between Imaging Device andCamera Grip>

The electrical connection between the imaging device and the camera gripin the imaging system is made using the connection cable 75, asdescribed above. Further, the grip main body section 61 of the cameragrip is provided in a rotationally movable manner in the direction ofarrow MA of FIG. 1 with the mount section 65 as the axis. Hence, theimaging system 10 is provided such that, even if the position of thegrip main body section 61 is changed with respect to the imaging device30, the connection cable 75 does not become an obstacle to the switchmanipulation of the grip main body section 61. For example, a situationwhere the connection cable 75 sags greatly and becomes an obstacle toswitch manipulation etc. is avoided by providing the connection cable 75such that the connection cable 75 is wound or rewound around the mountsection 65 in accordance with the rotational movement in the directionof arrow MA of the grip main body section 61.

FIG. 9 illustrates a cable arrangement in an imaging device. In theimaging device 30, the cable direction of the connection cable 75 is setto a tangential direction to the mount section 35. A jack 36 into whicha plug 76 provided at the connection cable 75 is inserted is provided onthe right side surface of the imaging device 30, which is a surface tobe attached to the camera grip 60. Further, for the jack 36, theinsertion and removal direction of the plug is set to the direction ofarrow FB that causes the cable direction to be an upper tangent line tothe mount section 35.

FIG. 10 illustrates a cable arrangement in a camera grip. The connectioncable 75 is drawn out from the facing surface 61 a of the grip main bodysection 61 facing the imaging device. A cable guide section thatregulates the position of the connection cable 75 to a direction windingaround the mount section 65 is provided on the facing surface 61 a. Asthe cable guide section, a cable guide protrusion section and/or a cableguide trench section is provided.

A cable guide protrusion section 67 is formed such that the position ofthe connection cable 75 is regulated to a winding direction FG withrespect to the mount section 65 by the mount section 65 and the cableguide protrusion section 67. Specifically, the cable guide protrusionsection 67 is formed in the circumferential direction of the mountsection 65 in a position distant from the edge of the mount section 65by a prescribed spacing in accordance with the thickness of theconnection cable so as to protrude in the protrusion direction of themount section 65. Further, a cable guide trench section 68 is formed ina portion that is around the mount base section 651 and that has a largeamount of protrusion toward the imaging device. Specifically, the cableguide trench section 68 is formed in the circumferential direction ofthe mount section 65 so as to have, as the trench width, the length fromthe edge of the mount section 65 to a position distant a prescribedspacing in accordance with the thickness of the connection cable. Thus,the position of the connection cable 75 is regulated by the mountsection 65, the cable guide protrusion section 67, and the cable guidetrench section 68.

FIG. 11 illustrates cases where the positional relationship between theimaging device and the camera grip is changed. Note that (a) of FIG. 11illustrates the position of the connection cable 75 in a case of animaging position in which the imaging direction is, for example, thehorizontal direction. (b) of FIG. 11 illustrates the position of theconnection cable 75 in a case of an imaging position in which theimaging direction is the downward direction. (c) of FIG. 11 illustratesthe position of the connection cable 75 in a case of an imaging positionin which the imaging direction is the upward direction. The positionalrelationship between the imaging device 30 and the camera grip 60 can bechanged by manipulating the lock release button 627 (see FIG. 4) of thecamera grip 60. That is, if the user performs lock release manipulationwith the lock release button 627, the grip main body section 61 becomesrotationally movable with the mount section 65 as the axis. Further, ifthe user ends lock release manipulation, the position of the grip mainbody section 61 is fixed at the rotational movement position at the timeof the end. Here, in a case where the camera grip 60 is attached to theimaging device 30, the mount section 35 of the imaging device 30 and themount section 65 of the camera grip 60 are fixed to each other. Thus,the positional relationship between the imaging device 30 and the cameragrip 60 can be adjusted by manipulating the lock release button 627.

The imaging system 10 is provided such that, when the camera grip 60 ismounted on the imaging device 30, the cable direction in the imagingdevice 30 is a cable direction regulated by a cable position regulationsection of the camera grip 60. Further, in the imaging system 10, thewinding or rewinding of the connection cable 75 to the mount section 65is performed in accordance with the rotational movement of the grip mainbody section 61; thereby, even if the positional relationship betweenthe imaging device and the camera grip is changed, the connection cable75 is prevented from sagging greatly.

For example, if the imaging device 30 is rotated in the direction ofarrow PD relative to the camera grip 60 and the imaging direction ischanged from the horizontal direction to the downward direction, alsothe position of the plug 76 inserted in the jack moves in the directionof arrow PD, with the mount section 35 as the rotational movement axis.Here, if the plug 76 moves in the direction of arrow PD, the winding ofthe connection cable 75 to the mount section 65 becomes larger than in acase where the imaging direction is the horizontal direction, and theconnection cable 75 does not sag greatly.

Further, if the imaging device 30 is rotated in the direction of arrowPU relative to the camera grip 60 and the imaging direction is changedfrom the horizontal direction to the upward direction, also the positionof the plug 76 inserted in the jack moves in the direction of arrow PU,with the mount section 35 as the rotational movement axis. Here, if theplug 76 moves in the direction of arrow PU, the connection cable 75 isrewound from the mount section 65. Therefore, the imaging device 30 andthe camera grip 60 can be connected without the connection cable 75sagging greatly.

Thus, in a case where the positional relationship between the imagingdevice 30 and the camera grip 60 is changed in the rotational movementdirection MA, the winding or rewinding of the connection cable 75 to themount section 65 is performed in accordance with the change in thepositional relationship, and the connection cable 75 can be preventedfrom sagging greatly. Therefore, the connection cable 75 does not becomean obstacle to the user's switch manipulation etc., and themanipulability of the imaging device can be kept good regardless of thechange in the imaging position.

<4. Another Configuration of Mount Section of Imaging Device>

It is noted that, in some accessories used for an imaging device, anattachment surface includes a chrysanthemum-shaped metal fixture (arosette surface). Further, also a chrysanthemum-shaped metal fixtureadapter or the like in which one surface is a chrysanthemum-shaped metalfixture and a section for attaching an accessory is provided on theother surface side, and the like are used.

FIG. 12 is a diagram for describing a chrysanthemum-shaped metalfixture. Note that (a) of FIG. 12 shows a front view and (b) of FIG. 12shows a perspective view. A chrysanthemum-shaped metal fixture 356includes a plurality of convex surfaces 356 a and a plurality of concavesurfaces 356 b extending radially from the center of a bearing surface.Further, an insertion hole 356 c through which a fixing screw forfixing, to an imaging device, an accessory or the like equipped with achrysanthemum-shaped metal fixture is inserted is formed in a centralportion of the bearing surface. Furthermore, attachment holes 356 d forattaching the chrysanthemum-shaped metal fixture 356 to the main body ofan accessory or the like are provided in the chrysanthemum-shaped metalfixture 356.

In another configuration of the mount section 35 of the imaging device30, a case where an accessory or the like in which an attachment surfaceis provided with a chrysanthemum-shaped metal fixture can be attached inplace of the camera grip 60 is described. FIG. 13 illustrates anotherconfiguration of the mount section of the imaging device. As describedabove, in the mount section 35 of the imaging device 30, the mount basesection 352 in a ring-like shape is provided on the circular concavesection 351 formed on the right side surface. The bayonet tabs 352 a areprotrusively formed on the inner peripheral surface of the mount basesection 352. Further, the leaf spring section 353 formed in a ring-likeshape is provided between the circular concave section 351 and the mountbase section 352, and the appearance ring 354 is provided on the outsidesurface of the mount base section 352. Furthermore, thechrysanthemum-shaped metal fixture 356 is provided at the center of thebottom surface of the interior of the mount section 35, that is, thecircular concave section 351. Further, a threaded hole for fixation 357for fixing an accessory or the like to the imaging device is formed atthe center of the chrysanthemum-shaped metal fixture 356.

If the mount section 35 is formed in this way, an accessory or the likeincluding a chrysanthemum-shaped metal fixture can be attached in a casewhere the camera grip 60 is detached from the imaging device 30.Specifically, the chrysanthemum-shaped metal fixture 356 of the mountsection 35 and a chrysanthemum-shaped metal fixture provided on anattachment surface of an accessory or the like are faced to each other,and a fixing screw provided at the center of the chrysanthemum-shapedmetal fixture in the accessory or the like is screwed into the threadedhole for fixation 357 of the mount section 35. In this case, since thechrysanthemum-shaped metal fixtures face each other, the convex sectionof one chrysanthemum-shaped metal fixture is fitted to the concavesection of the other chrysanthemum-shaped metal fixture, and the imagingdevice and the accessory or the like can be fixed with reliability.Further, if the fixing screw is loosened to release the fitting state ofthe concave section and the convex section of the chrysanthemum-shapedmetal fixtures, the accessory or the like becomes rotationally movablewith the fixing screw as the rotation axis, and the accessory or thelike can be changed to a desired position with respect to the imagingdevice.

Note that the effects described in the present specification are onlyexamples and are not limitative ones, and there may be not-describedadditive effects. Further, the present technology should not beconstrued as being limited to the embodiments described above. Theembodiments of this technology disclose the present technology in theform of examples, and it is self-evident that one skilled in the art canarrive at modifications and substitutions to embodiments withoutdeparting from the gist of the present technology. That is, thedetermination of the gist of the present technology requires taking theclaims into consideration.

Additionally, the present technology may also be configured as below.

(1)

An imaging device, including

-   -   a mount section configured to mount a camera grip in an        attachable and detachable manner on a device main body,    -   in which the mount section has a bayonet mechanism.        (2)

The imaging device according to (1),

-   -   in which a cable direction in the device main body of a        connection cable that connects the device main body and the        camera grip is set to a tangential direction to the mount        section.        (3)

The imaging device according to (1) or (2), further including

-   -   a jack for connecting the connection cable provided on a surface        of the device main body on which the mount section is provided,    -   in which an insertion and removal direction of a plug to the        jack is set to a direction that causes the cable direction of        the connection cable to which the plug is attached to be an        upper tangent line to the mount section.        (4)

The imaging device according to any one of (1) to (3), furtherincluding:

-   -   a chrysanthemum-shaped metal fixture provided in an interior of        the mount section; and    -   a threaded hole for fixation provided at a center of the        chrysanthemum-shaped metal fixture.

INDUSTRIAL APPLICABILITY

In an imaging device and a camera grip, and an imaging system of thistechnology, a mount section on which the camera grip is mounted in anattachable and detachable manner is provided in the imaging device, anda mount section on which the imaging device is mounted in an attachableand detachable manner is provided in the camera grip; and the mountsections each have a bayonet mechanism. Therefore, the attachment anddetachment of the imaging device and the camera grip becomes easier andmanipulability can be improved; thus, this technology is suitable for,for example, commercial video cameras and the like.

REFERENCE SIGNS LIST

-   10 imaging system-   20 lens unit-   30 imaging device-   32 manipulation section-   32, 62 manipulation section-   35, 65 mount section-   36 jack-   34 viewfinder section-   60 camera grip-   61 grip main body section-   61 a facing surface-   67 cable guide protrusion section-   68 cable guide trench section-   75 connection cable-   76 plug-   80 battery-   351 circular concave section-   352 mount base section-   352 a bayonet tab-   352 b, 353 b, 354 b, 356 d attachment hole-   353 leaf spring section-   353 a action section-   354 appearance ring-   356 chrysanthemum-shaped metal fixture-   356 a convex surface-   356 b concave surface-   356 c insertion hole-   357 threaded hole for fixation-   627 lock release button-   651 mount base section-   652 mount main body section

The invention claimed is:
 1. An imaging device, comprising a mountsection configured to mount a camera grip in an attachable anddetachable manner on a device main body; and a cable guide sectionconfigured to regulate a position of a connection cable that connects acamera grip main body section and the imaging device to a directionwinding around the mount section, wherein the mount section has abayonet mechanism.
 2. The imaging device according to claim 1, wherein acable direction in the device main body of a connection cable thatconnects the device main body and the camera grip is set to a tangentialdirection to the mount section.
 3. The imaging device according to claim2, further comprising a jack for connecting the connection cableprovided on a surface of the device main body on which the mount sectionis provided, wherein an insertion and removal direction of a plug to thejack is set to a direction that causes the cable direction of theconnection cable to which the plug is attached to be an upper tangentline to the mount section.
 4. The imaging device according to claim 1,further comprising: a chrysanthemum-shaped metal fixture provided in aninterior of the mount section; and a threaded hole for fixation providedat a center of the chrysanthemum-shaped metal fixture.
 5. A camera grip,comprising a mount section for mounting a grip main body section on animaging device in an attachable and detachable manner, the mount sectionbeing provided to protrude from the grip main body section; and a cableguide section configured to regulate a position of a connection cablethat connects the grip main body section and the imaging device to adirection winding around the mount section, wherein the mount sectionhas a bayonet mechanism.
 6. The camera grip according to claim 5,wherein the grip main body section is rotationally movable with themount section as an axis.
 7. The camera grip according to claim 5,wherein the cable guide section is a cable guide protrusion sectionwhich is provided in a circumferential direction of the mount section soas to be distant a prescribed spacing from a periphery of the mountsection and which protrudes in a protrusion direction of the mountsection, or is a cable guide trench section which is formed in acircumferential direction of the mount section so as to have, as atrench width, a length from the periphery of the mount section to aposition distant a prescribed spacing.
 8. An imaging system comprising:an imaging device; a camera grip; and a cable guide section configuredto regulate a position of a connection cable that connects a camera gripmain body section and the imaging device to a direction winding aroundthe mount section, wherein a mount section which mounts the camera gripin an attachable and detachable manner is provided in the imagingdevice, a mount section which mounts the imaging device in an attachableand detachable manner is provided in the camera grip, and the mountsection provided in the imaging device and the mount section provided inthe camera grip each have a bayonet mechanism.
 9. The imaging systemaccording to claim 8, wherein the camera grip main body section isrotationally movable with the mount section as an axis, a cabledirection of the connection cable that connects the imaging device andthe camera grip is set to a tangential direction to the mount section inthe imaging device, the cable guide section is provided in the cameragrip, and when the camera grip is mounted on the imaging device, a cabledirection in the imaging device is set to a cable direction regulated bythe cable guide section of the camera grip, and winding or rewinding ofthe connection cable to the mount section is performed in accordancewith a rotational movement of the grip main body section.